/*
 * Copyright 2002-2017 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.jdbc.datasource.embedded;

import java.sql.Connection;
import java.sql.SQLException;
import javax.sql.DataSource;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * Base class for {@link EmbeddedDatabaseConfigurer} implementations providing common shutdown behavior.
 *
 * @author Oliver Gierke
 * @author Juergen Hoeller
 * @since 3.0
 */
abstract class AbstractEmbeddedDatabaseConfigurer implements EmbeddedDatabaseConfigurer {

    protected final Log logger = LogFactory.getLog(getClass());


    @Override
    public void shutdown(DataSource dataSource, String databaseName) {
        Connection con = null;
        try {
            con = dataSource.getConnection();
            if (con != null) {
                con.createStatement().execute("SHUTDOWN");
            }
        } catch (SQLException ex) {
            logger.warn("Could not shut down embedded database", ex);
        } finally {
            if (con != null) {
                try {
                    con.close();
                } catch (Throwable ex) {
                    logger.debug("Could not close JDBC Connection on shutdown", ex);
                }
            }
        }
    }

}
